Past line function added

src/ofTeleprompter.cpp

@@ -33,7 +33,7 @@ void ofTeleprompter::update() {
         currentSentence = (*activeScript)[currentLine].sentence;
     }
 
-    currentLineIndex = ofToString(currentLine + 1) + " / " + ofToString(script.size() + 1);
+    currentLineIndex = ofToString(currentLine + 1) + " / " + ofToString((*activeScript).size() + 1);
 
     // Teleprompter logic (letter by letter)
     if (currentLetterIndex < currentSentence.size()) {
@@ -226,7 +226,7 @@ void ofTeleprompter::nextLinePressed() {
 
     ofLog() << "Next Line!";
 
-    if (currentLine < script.size()) {
+    if (currentLine < (*activeScript).size()) {
         currentLine++;
     }
 
@@ -315,7 +315,7 @@ void ofTeleprompter::keyPressed(int key){
 }
 
 void ofTeleprompter::pastLine() {
-    if (currentLine < script.size()) {
+    if (currentLine > 0) {
         currentLine--;
         currentSpeaker = (*activeScript)[currentLine].speaker;
         currentEmotion = (*activeScript)[currentLine].emotion;